Oven door and hinge therefor



t -Sneet Gift. 5' 1926.

A; STOCKSTROM OVEN DOOR AND HINGE THEREFOR Filed Sept 14, 1923 2 .J

Oct. 5 1926.

A. STOCKSTROM OVEN DOOR AN D HINGE THEREFOR File sep 14 19-23 2Sheets3-$heet ARTHUR STOGKSTB-OM, OF ST. LOUIS, MISSOURI, ASSIGNOR TOAMERICAN STOVE GOMPANY, OF ST. LOUIS, MISSOURI, A. CORPORATION OF NEWJERSEY.

OVEN DOOR AN D HINGE THEREFOR.

Application filed September 14, 1923. Serial No. 662,858.

This invention relates to improvements in oven doors and hinges thereforcomprising more specifically an oven door made of two ieces of sheet-metal composing an outer oor panel and inner lining, the door beingprovided with an improved form of friction hinge and stop. g

The object of my invention is to provide an oven door having a hinge,the working parts of which are carried jointly by the oven door' liningvand the door frame. 7 1

Another object of my invention is to provide an improved oven door andhinge which is so constructed that none of the working 1 parts of thehinge are carried by the outer oven door panel which enables the door tobe made of light sheet metal and which further makes it possible toenamel the outer door panel without the necessity of wiping 29 orcleaning the enamel from the panel at those points where heretofore theworking parts of the hinge have been attached to this panel.

Another and further object of my invention is to provide an oven doorand hinge of an improved construction whereby the outer door panel canbe enameled and the construction is such that the danger of the enamelbreaking is practically eliminated. 80 A still further object of myinvention is to provide an oven door and hinge of the type describedwherein there is provided. a novel form of door stop. Another andfurther object of my invention is to provide an oven door hin e of aconstruction whereby the oven door is automatically held at any anglebetween its open and shut positions. I

Other and further objects, improved construction and novel features andresults of my invention will appear in the following description andaccompanying drawings.

In the drawings: Figure 1 is a front elevation of my improved oven doorand hinge construction, the outer oven door panel being broken away atone corner to show thehinge lug or pintle construction. a

Figure 2 is a horizontal transverse sectional view taken on the line 22of Figure 1 looking ;in the direction indicated by the arrows. t.

Figure 3 is a vertical sectional view taken ing theenameled door. panel.

on a line 3-3 of Figure 1 looking in the direction indicated by arrow.

Figure 4 is an end view in full line taken near line 33 of Figure 1, theoven door being shown in its open position.

Figure 5 is a fragmentary detailed .perspective view of the hinge, thehinge-parts being shown in separated, extended relation prior to theassembling of the hinge.

The oven door and hinge construction which will be hereinafter describedis in a sense an outgrowth or improvement upon the hinge constructionshown in Patent 1,067,- 676 of July 1, 1913, to M. A. Possons, whichpatent is assigned to the American Stove Company to which company thepresent application is likewise assi ed.

By the use of the construction of m improved oven door and hinge it ispossi 1e to construct an oven door which comprises'two pieces of sheetmetal which compose the outer door panel and the inner lining therefor.This materially cheapens and simplifies the manufacture of the door asit has been previously constructed.

My improved invention likewise cheapens and simplifies the enameling ofthe outer door panel for the reason that those hinge parts whicharecarried by the door are carried by the inner door lining and,therefore, the necessity of wiping or removing the enamel from the outerdoor anel at those points where heretofore wor 'ng parts of the doorhinge have been attached, is eliminated. The life of the enamel islikewise greatly lengthened and the chances or danger of the enamelbreaking or cracking is greatly reduced by the reason that none of thehinge parts are carried by the enameled panel.

The door stop which is carried by the door lining also aids materiallyin protect- None of the advantages pointed out in the above areincorporated in the Possons patent referred to, or in any otherconstruction known to the applicant or the applicants employer, theAmerican Stove Company.

A detailed description of the several parts of my invention will now begiven and other advantages will appear from this description.

c Referring to the several figures of the drawings in which like partsare designated a by similar reference numerals throughout thedescription, 6 designates an oven front and this oven front may, asappears in Figure '1, comprise the front of more than one oven. It iscommon in the art to provide an oven'having two doors, one door beingfor the baking operation of the oven and the other for the oven broiler.

The oven door comprises an outer panel 7 having inwardly bent orextending edges 8 and a rear panel 9 with inwardly bent or extendingedges 10. The oven door front panel 7 and inner lining 9'are adapted totelescope in the manner clearly shown in Fi re 2 of the drawings, theinner lining fitting within the front or outer panel. The

- two parts of the door are held together at their bottom by twosuitable bolts 11 in sep- Y aratedrelation. The oven door lining isprovided with openings 12 adjacent to bolts so that they can be reachedfor insertion. or removal. The bolts 11 may be removed by a screw driverapplied to th'ehead of .the

bolt exterior to the face of the said section. The removal of the boltsenables the outer face of the door to be also removed. The two doorparts are held attheir top by the outwardly projecting door catch 13which is in'construction a cylindrical sliding bolt which is spring suported within a suitable housing 14 carried y the inner door paneladjacent its top edge. The door catch 13 extends through both of theinturned top edges 8 and 10 of the oven door front panel and innerlining and in addition to fastening the two parts of the door togetherat this point it engages a suitable opening, in I the lug 15 which iscarried by the oven front 6.

- door panel a Adjacent the top of the outer door panel there issuitably fastened by means of bolts 16, a door handle 17. To assure thatthe outer door panel is not bent inwardly out of shape when the handleis'fastened in place by the bolts 16 the inner door lining is providedwith two outstanding projections 18 adapted to engagethe inner side ofthe outer jacent the openings through which the handle bolts 16 passandsupport the-door panel at these points.

Opportunity is taken at this time to direct attention to the fact that avery simple and cheap construction of door is provided in the mannerjust described. The outer door' panel is referably, provided with acentral outwardly bulged portion 19 for the purpose of appearance andupon this bulged portion the trade name of the stove is usual- 1yapplied. It is, of course, understood that outwardly extending hingepintle 21, which pintle carries'upon its end a cam 22. To allow for thepassage of the downwardly ex-. tending portion of the pintle it isnecessary that the telescoping walls 8 and 10 of the oven door front andlining be cut out as at 23. The L-shaped brackets 21 carry at theirlowermost corners outwardly extending projections 24 which extendthrough the oven front panel to form a stop for the door, and operate ina manner which be described.

Carried upon the ovenfront 6 at its opposite edges adjacent the door arethe L- shaped hinge spring members 25. These parts are fastened adjacenttheir top by suitable bolts 26 or the like and carry between them andthe oven front 6 wearing plates 27. The lower ends of the spring members25 are bulged outwardly as at 28 which thereby, provides an opening orhousing. The horizontal legs 29 of. the L-shapcd spring members 25support the hinge pintle 21 While the cam 22 of the hinge pintle isadapted to pass through the opening 30 into the housing back of thebulged portion 28 of the spring members. The cam ends 22 of the pintlesengage the bulged portion 28 of the spring members and as the door isopened and the hinge pintle rotated these cams exert an outward pressureupon the spring members. When the door has reached its open position theends of the stops 24 will engage the top of the horizontal leg portion29 of the spring members. The wearing parts 27 will, of course, protectthe front 6 against the action of the cams 22 and these parts 27 arepreferably made of hardened metal to resist wearing.

The operation of the door is obvious.

will hereinafter When the-door is closed the hinge parts are ends thelower ends of these members can be sprung outwardly to the positionshown in Figure 4. As there is constant tension upon ill! the cams 22 ofthe hinge pintles the oven.

door will stay in practicallyany position at which it is set.

. -Due to the manner in which the hinge pintles are mounted upontheinner oven door lining there are practically no openings in the outerdoor panel around which the wiping of the enamel must necessarily takeplace. The oven door outer panel has only four openings, two of thembeing for the assa e of the bolts which hold the door and e and theother two being for the passage of the .oven door stops 24. Because ofthis construction there ,is practically no strain put upon the outerdoor panel and this eliminates to a high degree the danger of crackingthe enamel on the panel.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. An oven door comprising a front panel and an inner door lining intelescopic relation, a hinge pintle carried by the inner lining betweenthe said lining and the front door panel, said pintle extendingoutwardly beyond. the door through the door bottom, and a stop for thedoor comprising projections carried by the hinge pintle brackets whichextend outwardly through and beyond the oven door front panel.

2. An oven door and hinge therefor, coinprising an outer door'panel andan inner lining therefor, the door lining and panel havingj inwardlyprojecting edges in telescopic relation whereby a space is formedbetween the panel and the lining, a bracket carrying a hinge pintlecarried by the inner door lining, said pintle extending outwardly fromthe space between the lining and the panel, an oven front, pintlereceiving and supporting members carried by the oven front, said pintlesupporting members provided with a horizontal projection, and the pintlebrackets provided with projections extending outwardly through andbeyond the outer door panel and adapted to engage the said horizontalprojections, for the purpose described.

3. The combination of an oven door and a hinge therefor,- comprising anoven front, hinge spring members carried'by the oven front, a doorcomprising an outer door panel and an inner lining therefor, hingepintles carried by the door lining and projecting outwardly-beyond thedoor, the outer end of the pintles provided with a cam, and the lowerends of the spring members provided with a housing adapted to receiveand rotatably support the cam' ends of the pintles, whereby the doorpintles are in friction engagement with the spring members, for thepurpose described.

4. An improved door hinge, comprising a door frame, a door having afront panel and an inner lining, a pintle having a laterally projectingpivot provided with a curved cam carried by the inner lining, a springarm secured to the door, frame at its upper end and its lower free endlocated outside of said cam, said arm having inwardly projectingflanges, the inner flange having a door pivot recess and an inwardlyprojecting stop arn located in the path traveled by the edge of the doorto form a stop therefor.

,5. In an oven door, a front door panel and an inner lining therefor, ahinge pintle having outwardly projecting pivots provided with eccentricscarried by the inner panel, spring friction arms extending upward fromthe pintle pivots and secured at their upper free ends to the doorframe, the lower front ends of the arms placed outside of the eecentricsand adapted to be engaged thereby when the door is opened to support itat any desired angle between the closed and open positions, the lowerends of said friction spring arms having inwardly projecting stop armsin the path traveled by the edge of the door to form stops therefor.

6. In an oven door structure, a liner sec tipn, a face section, hingessecured to and intersecting with said liner section independently ofsaid face section, and fastenmg elements for attaching and detachingsaid face section independently of said liner section and hinges.

7. In an oven door, a liner panel having inturned peripheral flanges, aface panel, hinge members connected to said liner panel, and means forconnecting said panels independently of said hinge members whereby oneof said panels may be attached or detached independently of the otherand said hinge members.

8. An oven door structure, comprising a flanged liner section, aflangedcomplementary face section, hinge trunnions secured to said linersection independently of said face section, and fastening elementscarried by.

signature.

ARTHUR STOQKSTROM,

